Biology
11th Edition
ISBN: 9780076672462
Author: Singer, Susan
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 16, Problem 4S
The number and type of proteins found in a cell can be influenced by genetic mutation and regulation of gene expression. Discuss how these two processes differ.
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Choose the statement that correctly characterizes regulated and/or constitutive gene expression.
Regulated expression refers to gene expression that is either on or off, depending on the physiological or metabolic status of the cell.
Constitutive expression refers to gene expression that is either on or off, depending on the physiological or metabolic status of the cell.
Constitutive expression refers to gene expression that is always repressed in response to the absence of required nutrients or other metabolic molecules.
Regulated expression refers to gene expression that is always on, regardless of the metabolic or physiological conditions in the cell.
Regulated and constitutive expression are terms used to describe gene expression in prokaryotes only.
List the three general types of effects a mutation can have on a cell’s function.
Given the following schematic for a gene and its associated regulatory regions, answer the following questions by placing the correct letter in the provided blanks
please put in the correct letter for the questions
What region would provide cell type-specific expression of genes? region
What site would significantly increase gene expression rates? = region
What region or regions of this gene’s coding sequence are expressed as amino acids = region
Chapter 16 Solutions
Biology
Ch. 16 - In prokaryotes, control of gene expression usually...Ch. 16 - Prob. 2UCh. 16 - In E. coli, induction in the lac operon and...Ch. 16 - The lac operon is controlled by two main proteins....Ch. 16 - In eukaryotes, binding of RNA polymerase to a...Ch. 16 - In eukaryotes, the regulation of gene expression...Ch. 16 - In the trp operon, the repressor binds to DNA a....Ch. 16 - Prob. 1ACh. 16 - Specific transcription factors in eukaryotes...Ch. 16 - Repression in the trp operon and induction in the...
Ch. 16 - Regulation by small RNAs and alternative splicing...Ch. 16 - Eukaryotic mRNAs differ from prokaryotic mRNAs in...Ch. 16 - In the cell cycle, cyclin proteins are produced in...Ch. 16 - A mechanism of control in E. coli not discussed in...Ch. 16 - You have isolated a series of mutants affecting...Ch. 16 - Examples of positive and negative control of...Ch. 16 - What forms of eukaryotic control of gene...Ch. 16 - The number and type of proteins found in a cell...
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- The process of gene expression involves:arrow_forwardDiscuss the role of chromatin proteins in regulating gene expression. How does the three-dimensional structure of the chromatin affect genetic regulation? How do hormones influence genetic regulation?arrow_forwardIdentify and list the functions of the three general classes of proteins that control cell death.arrow_forward
- Genetic expression in general can be regulated at various stages. Identify specific processes that control gene expression at the: a. transcription level - b. post-transcription level - c. translation level -arrow_forwardDiscuss the relationship between genes and phenotype in terms of gene expression and the symptoms caused by mutations in genesarrow_forwardDescribe the processes of cellular signaling and metabolism that are altered during the transformation of a cell.arrow_forward
- The most common type of regulation of gene expression occurs at the level of transcription. Name other types of gene regulation for gene expression in eukaryotic cells. Name types of gene regulation unique to eukaryotic cells versus prokaryotic cells.arrow_forwardGlycophorins are a type of membrane protein found on red blood cells. They allow red blood cells to circulate through the blood vessels without sticking to the walls of the blood vessels or to other cells. Describe how a glycophorin protein would be synthesized by the cell. Include What parts of the cell are involved and what happens at each location. The process of protein synthesis (i.e. transcription, translation, etc).arrow_forwardExplain the importance of transcription factors.arrow_forward
- Please explain the role of gene expression in the process of a stem cell differentiating into a neuron rather than a liver cell. Hint: use the terms "serial activation of a subset of genes" and "master regulatory gene".arrow_forwardList and discuss four different mechanisms by which vitamins A and D regulate gene expression.arrow_forwardExplain why cells need to control gene expression.arrow_forward
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